But it could take some time to dispense with BPA for good. While BPA-free liners are available, they cost more and don't work well for some foods, like tomatoes, that have higher acidity levels. Campbell's didn't say when it plans to stop using BPA. "We have already started using packaging lined with a BPA alternative in some of our soups, and we are working to phase out the use of BPA in can linings in the rest of our canned products," the company says in its updated corporate sustainability report.